Manner of constructing locks for doors



nnrTED sTATEs PATENT oEErcE.

PETER RODGERS, OF PHILADELPHIA, PENNSYLVANIA.

MANNEB- OF CONSTRUCTING LOCKS FOR DOORS.

Speccation of Letters Patent No.

To all whom t may concern Be it known that I, PETER RoDGERs, of the cityof Philadelphia, in the State of Pennsylvania, have made an Improvementin Locks for Doors, which improvement consists in the manner in which Iconstruct and combine the spindle and knobs of the spring-bolt with thefallers or followers which operate upon the lever and retract the bolt,so as to simplify the structure of this part and improve its action; andI do hereby declare that the following is a full and exact. descriptionthereof.

I connect the inside faller, or that which is next to the lock plate,with a hollow barrel, or cylindrical socket, which projects out from theface of the lock plate, upon which barrel, or cylindrical socket, I fitthe inside knob of the spring bolt. The knob spindle is made cylindricalwhere it passes through the inside faller, and into said barrel, and hasa groove turned in it to receive the point of a screw which passesthrough the inner knob, and through the barrel, attaching them together,and holding the knob spindle in place. y

In the accompanying drawing Figure l, is a sectional view of thespindle, the socket, the fallers, &c.; o, is the knob spindle with theoutside knob o, lirmly attached to it, in the ordinary way; c, c, is acylindrical socket, on the outside of the lock plate, passing throughit, and irmly attached to the inner faller cl, (Z, so as to constitutethem one piece; e, e, is the outer faller, which has a square hole madethrough it, in the usual manner, where the spindle o, passes through it,there being a square on said spindle corresponding with said hole. Thepart o, o', of the spindle, which passes through the inner faller d, (l,and which enters, and occupies, the socket c, c, is round, so that itcan turn freely in the socket, and also in the faller cl, al; the innerknobe b fits on to the outside of the socket c, c, and is held in placeby means of the screw e,

1,796, dated September 25, 1840.

the point of which enters the grooveermade around the spindle a. Theinner faller cl, CZ, being, as above stated, attached to the socket c,c, will in consequence of this arrangement, be acted upon by the turningof the knob b, so as to draw the spring bolt back, independently of thespindle a., which may remain at rest during this operation. W'hen theoutside faller is held by the faller catch, and prevented from turning,the knob Z), on the outside of the door will also be hel-d fast, whilethe knob b, on the inside will still withdraw the bolt, the action ofthe two knobs being rendered independent of each other.

In Fig. 2, f, is the outer faller catch; g, the lever against which thefallers act, and which withdraws the spring bolt 7b; these parts do notpresent anything that is new, their general construction being the sameas that adopted in other locks.

Having thus, fully described the manner in which I construct and combinethe respective parts of my lock, so far as the action of the spring`bolt is concerned, what I claim as constituting my invention therein,and desire to secure by Letters Patent, is

The constructing, combining, and arranging of the socket c, c, the innerfaller cl, (l, and the inner knob b', in the manner, and for t-hepurpose, herein set forth, so that the two knobs may act independentlyof each other. I do not claim the mere making of the inner knob to actupon the spring bolt independently of the outer knob, this having beendone in other modes, but I limit my claim to the effecting this objectsubstantially in the manner herein made known.

In testimony whereof I hereimto set my name this twenty-seventh day ofJuly, in

the year 1840.

PETER RODGERS. I/Vitnesses:

THos. P. JONES, GEORGE WEST.

